Process of imitating onyx, marble, or the like on glass



Patented Aug. 29, 1933 UNITED STATES- PRoo 'ss or IMITATING ONYX, MARBLE,

- OR'THE LIKEYAON GLASS Frank L. Hill,

Orlando, Fla.

Application Februaryl, 1933. Serial No. 654,715

2 Claims. (Cl. 41--22) The invention relates to the production of imitation onyx, marble, and the like and to that extent is along the same general lines as my U. S. Patent 993,993 of May 30, 1911. In the prior patent, while provision was made for producing good simulations of numerous natural formations in onyx, marble, and the like, there was no pro-- Vision for imitating cracks, beauty spots and veins, in which the natural beauty of the stone lies to a large extent. In endeavoring to effectively simulate such cracks, beauty spots and veins with the process disclosed in the patent, I found that it was an impossibility to do so. Moreover, it was only after numerous unsuccessful and only partially successful experiments that I finally evolved a process by which the desired results could be attained. This process is herein described and claimed, and an illustration of the result is given in the accompanying drawing.

Fig. 1 is an elevation of a small piece of imitation onyx showing a beauty spot and a crack or vein produced in accordance with the present.

invention.

Fig. 2 is a fragmentary sectional view showing the partly completed simulation.

Fig. 3 is a fragmentary sectional view on line 33 of Fig. 1. In practicing the invention, I mix equal part of zinc and white lead with a fluid consisting of two-thirds varnish and one-third linseed oil to form a coating fluid. The ingredients are preferably mixed so that the fluid contains by volume one part zinc, one part white lead, three parts varnish and one part linseed oil. Quantities of this fluid are colored to produce quantities of semi-transparent coating material of the various colors required to obtain the desired color effects in the onyx or other simulation to be produced;

With the coating material above described, I apply a vari-colored body coat 5 directly to the reverse side 6 of a transparent plate P (preferably glass), and I so work and blend the various colors as to effectively imitate onyx or the like, free from veins, cracks or beauty spots. Then, while the body coat 5 is still wet, I remove a portion thereof as denoted at '7 to expose a restricted area 8 of plate P, wherever a beauty spot, crack or vein is desired on the simulation. I then apply some of the above described coating material of suitable color or colors to the exposed area or areas 8 as denoted at 9 to simulate only a beauty spot 10, only a crack, only a vein, or any two of these characteristics, or all three of them, and 11 may be considered as denoting either a crack or a vein. The coating material 9 and the contiguous portions of the body coat 5 are artistically worked and merged to produce the same general appearance as that existing around the beauty spots and along the cracks and/or veins of the stone being simulated.

After performing the above described steps, one or more coats of paint 12 may be applied to the coating material 5 and 9 after drying, and wool flock 12 may be applied to the last coat while the latter is wet. The flock forms a feltlike protection for the lower side or back of the simulation, preventing scarring and also preventing a number of the simulations from sticking together when stacked, or packed together for shipment.

If, in producing a beauty spot 10 and/or crack or vein 11," it be found desirable, some of, the

coating'material 9 may be grooved out or otherblenders, cloths, sponges, fingers, thumb nail, etc.

Small putty knives, wooden paddles or any of various other instruments may be used for removing the body coat 5 wherever a crack and/ or beauty spot or vein is to be simulated.

By following the process herein disclosed, I ,85

have been enabled to produce beautiful imitations so realistic as to defy detection except under most severe scrutiny. Obviously, these simulations may be used wherever desired but some of the principal adaptabilities are in the production of dresser and table tops, serving trays,

bath rooms, theatre and other wall decorations, ornamental columns, frieses, soda fountains, counter fronts and the like. v

I claim: 7 1. A process of producing imitation onyx, marble or the like having at leastone simulation of a crack of vein and/ or beauty spot, comprising the steps of applying a vari-colored body coat of coating material directly upon the reverse surface of a transparent plate and working the various colors upon said surface to simulate onyx, marble or the like free from cracks or veins and beauty spots, removing a portion or portions or vein and/ or beauty spot, so working and mergjg of said body coat while wet to expose a restricted 1 ing the crack or vein and/or beauty spot material and the contiguous portions of said body coat as to present a natural appearance, and allowing all of the coating material to dry and permanently adhere to the plate.

2. A process of producing imitation onyx, marble or the like having at least one simulation of a crack or vein and/or beauty spot, comprising the steps of mixing equal parts of zinc and white lead with a fluid consisting of two-thirds varnish and one-third linseed oil to form a fluid, coloring quantities of said fluid to produce quantities of coating material of the various colors required,

applying a vari-colored body coat of said coating material directly upon the reverse surface of a transparent plate and working the various present a natural appearance, and allowing all of the coating material to dry and permanently adhere to the plate.

7 FRANK L. HILL.

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